Intangibles, Net

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangibles, Net

9. Intangibles, net

Intangibles, net consisted of the following:

	December 31, 2015
(in thousands)	Cost		Accumulated amortization		Net		Amortization Method
Trademarks	$	13,540	$	6,934	$	6,606		Straight-line
Customer relationships		100,737		88,564		12,173		Accelerated
Other patents		42,780		41,063		1,717		Straight-line
	$	157,057	$	136,561	$	20,496

	December 31, 2014
(in thousands)	Cost		Accumulated amortization		Net		Amortization Method
Trademarks	$	13,540	$	5,116	$	8,424		Straight-line
Customer relationships		105,373		88,931		16,442		Accelerated
Other patents		42,780		40,455		2,325		Straight-line
	$	161,693	$	134,502	$	27,191

The Company recorded amortization expense for its intangible assets of $6.0 million, $7.6 million and $14.4 million for the years ended December 31, 2015, 2014 and 2013, respectively.

Expected future amortization expense related to the intangible assets is as follows (in thousands):

Years ended December 31,
2016	$	5,165
2017		3,386
2018		2,683
2019		1,832
2020		1,592
2021 and thereafter		5,838
	$	20,496

Changes in the gross carrying amount of intangible assets for the year ended December 31, 2015 and 2014, were as follows (in thousands):

(in thousands)
Balance at December 31, 2013	$	162,618
Effect of currency translation		(925	)
Balance at December 31, 2014		161,693
Intangible assets held for sale		(3,188	)
Effect of currency translation		(1,448	)
Balance at December 31, 2015	$	157,057